1. Down Syndrome Prenatal Education Act (“Chloe’s Law”). Pub. L. 2450, No. 130, Cl. 35. (Jul 18, 2014). http://www.legis.state.pa.us/cfdocs/billinfo/billinfo.cfm?syear=2013&sind=0&body=H&type=B&bn=2111.
2. Chloe’s Law Now Act 130 of 2014. 2014 July 22. In: Pennsylvania News & Buzz [Internet]. http://www.pennsnews.com/2014/07/chloes-law-now-act-130-of-2014/#.U9GQM1bqdIg.
3. Maternal Age and Risk for Down Syndrome. 2014 April 9. In: NIH [Internet]. http://www.nichd.nih.gov/health/topics/down/conditioninfo/Pages/risk.aspx#f1.
4. Telling Genes: The Story of Genetic Counseling in America;AM Stern,2012
5. Prescribing Our Future: Ethical Challenges in Genetic Counseling;AL Caplan,1993